S72 CINCHONA LEDGERIANA. 
these so-called — of Phytophthora infestans are merely masses 
of oxalate of lim 
It might be wontended by Mr. Wilson that, since ee of 
lime is to be found in certain plasmodia, a mistake has been made, 
but the application of dilute nitric acid for half an deocer ‘ the - 
leaves would not have been sufficient to remove all trace whatever 
of a protoplasmic structure such as a plasmodium. 
INDHMON A LE DGHREAIAN A. 
By Henry Troen, M.B., F.L.§8. 
I rar. to see that Dr. Kuntze has in any way strengthened his 
position by his attempt (p. 298) to discover discrepancies in my two 
st les on C. Ledgeriana. In the latter one I was only concerned 
o show that this species, if. ae tected from chances of cross- 
fertilization, produced its own seed abundantly, and ica such 
seed came as true as that of sila species under ilar circum- 
stances. All the species of Cinchona vary a good deal in leat form, 
and o not agree wit th Dr. Kuntze in considering that it is 
iy for a species” to produce perfectly true seed. 
It is of course a matter of but little importance whether the 
Dr. Kuntze says it is “proved” by the botanical characters, but a 
good deal more than such woos Biante so be required to satisfy 
Oe of the truth of his assumption 
There is some evidence with quite thi 3 oak tendency. In 
1881 Mr. Moens commenced, in the Java plantations, a series of 
artificial crossings of Cin chona : amongst phate he succeeded in 
crossing C. Calisaya with C. micrantha. The resulting seed germi- 
nated, and re Ae ae were put out in the open in Mareh, 
882. Here, then ording to Dr. Kuntze, was a direct syn- 
thesis of C. L vedo peas "Bik this is what Mr. Moens W rote to me as 
to the result. After alluding to other artificial hybrids he had 
owing, he proceeds :—‘‘ The recipe of Kuntze for making Ledgeri- 
aud, Cross- Ben densi of Calisaya with micrantha, has given no 
Ledgeriana, but an intermediate — Curiously en ough, almost 
ioe 3 in our Prise 
This is surely ty direct disproof of Dr. Kuntze’s theory, 
and from a source above suspicion, A good many more of his 
baseless assertions as to the origin of oie Cinchonas are equally 
well disposed of in Mr. Moens’ ‘Kina cultuur in Azié,’ the most 
valuable contribution to Quinology yet App neo and one which it 
is to be hoped will be put into an English dres 
[This discussion is now closed.—Ep. Journ. ‘Buid 
